Perhaps one of the most useful things I learned in Austin this weekend is what to do when you're in a hotel room with a cold beer and no bottle opener in sight: take any strong, small object - like the bottom of a lighter - and push it up against the cap using your finger for leverage.

The video here demonstrates with a piece of paper folded tight; I did it with a lighter after only a few tries. It's not a matter of hand strength, only a matter of leverage, so anyone can do it. Hit the link to see other objects you can crack that beer with over at Instructables. Thanks, Scott!